Home / 15,743.66-21,711.26-12,152.88

Finding the Fourth Proportional to 15,743.66, 21,711.26 and 12,152.88

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Solution

The fourth proportional to 15,743.66, 21,711.26 and 12,152.88 is: 16,759.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,743.66 : 21,711.26 = 12,152.88 : x
  2. Step 2: Convert to fraction form
    15,743.66/21,711.26 = 12,152.88/x
  3. Step 3: Cross multiply
    15,743.66x = 21,711.26 × 12,152.88
  4. Step 4: Simplify right side
    15,743.66x = 263,854,276.66
  5. Step 5: Solve for x
    x = 263,854,276.66/15,743.66
  6. Step 6: Final answer
    x = 16,759.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.